liable to breakage, although it is in close proximity to the flame, as
may be gathered from the testimony of the inventor, who has never broken
one, notwithstanding the severity of some of his experimental studies
upon his first lamp. The consumption of gas in the first working-model
burner made by Mr. Grimston was 10 cubic feet per hour, and its
illuminating power averaged 60 candles. The diameter of this burner was
11/4 inches across the tubes. It is scarcely necessary to state that if
this high duty, which was obtained with the ordinary 16-candle gas of
the Gaslight and Coke Company, can be maintained, to say nothing of
being exceeded, in the commercial article, the Grimston burner, with its
other advantages over all existing methods of obtaining equal results,
has a great future before it. For example, it does not require a
separate air supply under high pressure, or any extra material to render
incandescent, and it may be turned on full immediately upon lighting. It
throws a shadowless light, and lends itself to ventilating arrangements;
and it is not by any means cumbersome, delicate in construction, or
costly in manufacture. One of the greatest advantages to which it lays
claim is, however, the power of yielding almost as good results in a
small burner as in a large one. This is a consideration of great moment,
when it is remembered that the tendency of most of the high power
burners hitherto introduced is to benefit the lighting of streets,
large interiors, and, generally speaking, points of great consumption.
Meanwhile, the private user of burners, consuming from 3 to 5 cubic feet
of gas per hour, has been left to attain as best he might, by the use of
burners excellent of their kind, to the maximum effect of the standard
Argand. Now, however, Mr. Grimston seeks to make the small consumer
partake of the advantages erstwhile reserved for the wholesale user of
large and costly Siemens and other lamps, and he even looks to this
class of patrons with particular care. The example which we now
illustrate, in Fig. 1, is a sectional presentment precisely half the